I was looking into this recently for myself. My personal solution was to get an old WACOM pressure plate graphics tablet and plug it into a cheap laptop that I put Linux on, with Krita as my art program.

There are Linux tablets with stylus support out there if the display aspect is important to you. They were out of my price range, though.

Considering askreddit was the first sub I personally noticed go from feeling like anywhere else online to become blatantly overrun with bots and astroturfing, feels like a chicken-or-the-egg situation.